Bottles and jars – Closures – Retained by bonding or adhesive means
Patent
1991-10-15
1993-03-30
Shoap, Allan N.
Bottles and jars
Closures
Retained by bonding or adhesive means
215258, 215347, 215349, 220359, 2291231, 2291232, 2064842, B65D 4302, B65D 5304
Patent
active
051976188
ABSTRACT:
A tamper-evident multiple layer induction foil liner for sealing the opening of a container comprises a "sandwich" having a first layer in the form of a fusion-bond heat seal polymer. This heat seal polymer is fusion bonded to the lip of the container opening to secure the liner to the opening. The next layer is a low-cohesive strength layer which, in turn, is bonded to an aluminum foil layer strengthed with tear-resistant backing. A pull-tab is provided to facilitate removal of the liner after the cap is removed from the container. When the pull-tab is lifted, the low-cohesive strength layer splits or shears through the application of a relatively small amount of force. Thus, the aluminum foil and tear-resistant backing readily may be removed from the container opening. It is then a simple matter to puncture the thin and mechanically weak polymer layer to uncover the container opening. A residue of the fusion bonded polymer, with a surface covering of a portion of the sheared low-cohesive strength layer, provides a readily observable tamper-evident residue on the lip of the container opening after the liner has been removed.
REFERENCES:
patent: Re29705 (1978-07-01), Compere
patent: 2646183 (1953-07-01), Pellett
patent: 2715474 (1955-08-01), Phillips
patent: 3083821 (1963-04-01), Woodson
patent: 3355059 (1967-11-01), Balocca et al.
patent: 3501042 (1970-03-01), Risch et al.
patent: 4013188 (1977-03-01), Ray
patent: 4055672 (1977-10-01), Hirsch et al.
patent: 4280653 (1981-07-01), Elias
patent: 4379008 (1983-04-01), Gross et al.
patent: 4418834 (1983-12-01), Helms et al.
patent: 4438850 (1984-03-01), Kahn
patent: 4451526 (1984-05-01), Claude et al.
patent: 4501371 (1985-02-01), Smalley
patent: 4588099 (1986-05-01), Diez
patent: 4596338 (1986-06-01), Yousif
patent: 4666052 (1987-05-01), Ou-Yang
patent: 4693390 (1987-09-01), Hekal
patent: 4721217 (1988-01-01), Phillips et al.
patent: 4757914 (1988-07-01), Roth et al.
patent: 4771937 (1988-09-01), Kamada et al.
patent: 4784885 (1988-11-01), Carespodi
patent: 4857369 (1989-08-01), Dehlenschlaeger
patent: 4930646 (1990-06-01), Emslander
patent: 4934544 (1990-06-01), Han et al.
patent: 4960216 (1990-10-01), Giles et al.
patent: 4988004 (1991-01-01), Intini
patent: 5004111 (1991-04-01), McCarthy
patent: 5012946 (1991-05-01), McCarthy
Caretto Vanessa
Ptak LaValle D.
Shoap Allan N.
Top Seal, Inc.
LandOfFree
Tamper-evident fusion bonded pull-tab induction foil lining syst does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tamper-evident fusion bonded pull-tab induction foil lining syst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tamper-evident fusion bonded pull-tab induction foil lining syst will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1275619